.yyal-item-box {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    box-sizing: border-box;
    padding: 50px 20px;
}

.yyal-item {
    width: calc((100% / 2) - 27px);
    border: 1px solid #D0D0D0;
}

.yyal-item>.yyal-img-box {
    overflow: hidden;
}

.yyal-item>.yyal-img-box:hover>img {
    transform: scale(1.1);
}

.yyal-item>.yyal-img-box>img {
    transition: all 0.3s;
    width: 100%;
    cursor: pointer;
}

.case-title {
    font-size: 20px;
    font-weight: bold;
    box-sizing: border-box;
    padding: 20px;
    transition: all 0.3s;
    cursor: pointer;
}

.case-title:hover {
    color: #1559ED;
}

.case-cotiner {
    box-sizing: border-box;
    padding: 0 20px 20px;
}

@media screen and (max-width:900px) {
    .about-us {
        padding-left: 20px;
        padding-right: 20px;
    }

    .yyal-item {
        width: 100%;
    }
}